\documentclass[a4paper]{report}
\usepackage{float}
\usepackage{pstricks}
\usepackage{graphicx}
\usepackage{geometry}
\usepackage[utf8]{inputenc}
\usepackage[english,russian]{babel}
\usepackage{array, url}


\title{Dynamic Succinct Cardinal Tree}
\date{}
\author{Victor V. Smirnov}
\begin{document}
\abstract{bbbbb}
\maketitle

%\input intro.tex
%\input associations.tex
%\input succinct.tex
%\input conclusion.tex
%\input biblio.tex
\end{document}
